WEIMI / REQUEST FORMAT ACCEPTANCE
Agree the actual service contract before correcting a rejected request.
An offered integration submits management data and receives HTTP 415. The operator assumes a stock value is invalid, while the implementer needs to check whether the service accepts the message format at all. This hypothetical purchasing case is not an observed WEIMI fault or a live API test.
MDN’s 415 Unsupported Media Type reference, updated 4 July 2025 and read on 11 October 2026, says the server refused the request because its message content format is unsupported. The problem may involve Content-Type, Content-Encoding or processing the content itself.
The source supports a format-acceptance review. It does not establish a JSON API, accepted schema or specific charset restriction for any vending product. This article compares public manufacturer listings and proposes harmless provider-controlled evidence rather than independent equipment testing.
Request the accepted message contract and compare it with the actual submitted body. A 415 does not itself identify a bad inventory value or prove the endpoint accepts JSON. Ask which type, encoding and content form the real provider supports.
MDN illustrates missing Content-Type and a mismatched declared type. Its example returns the required type through Accept-Post. That illustrates one service response, not a mandatory header on every 415. Request the actual supported correction information.
Correcting a header must correspond to the real content and contract. Relabelling unsupported bytes does not demonstrate a usable request. Keep format acceptance separate from permission, business validation and final task completion.
These proposed cases need harmless provider-approved messages and the actual offered endpoint. No live submission is performed here.
| Case | Supported meaning | Evidence requested | Wrong conclusion |
|---|---|---|---|
| 415 received | Message format unsupported | Actual accepted contract | Stock value definitely invalid |
| Content-Type absent | May fail a strict endpoint expectation | Documented required declaration | Every service defaults to JSON |
| Header and body disagree | Example of format mismatch | Actual content and declaration | Changing label alone fixes content |
| Encoding unsupported | Possible cause described by MDN | Supported encoding and response | Type is the only possible cause |
| Accept-Post supplied | Example correction information | Actual supported media types | Every 415 must include it |
| Corrected format accepted | That request passed format handling | Business and final-result evidence | All data and permissions are valid |
Use this brief when a quotation includes a real integration that submits message content. Confirm the function and provider first. A touchscreen or inventory-management label does not establish a public modification API.
Procurement should connect the service provider’s format contract with the implementer’s message construction and the operator’s correction workflow. Do not ask operators to guess media types from a generic failure screen.
The guide helps when a supplier demonstration shows only one successful sample. Ask for documented expectations and a harmless rejection case before accepting compatibility. Do not submit private records to discover undocumented formats.
We use public WEIMI evidence reviewed on 10 October 2026. The shortlist compares recognition-based shelf access, touchscreen dispensing options and another stock cabinet. No request format or 415 implementation is verified for any candidate.
First, identify the actual operation. Ask what content is submitted and which service accepts it. Do not infer JSON, forms, compression or a schema from hardware features.
Second, request the provider’s accepted media type and encoding contract. Compare those expectations with a harmless actual request and its body. A library configuration screenshot alone is narrower than delivered-message evidence.
Third, review controlled rejection and correction. Record what was unsupported and how the implementer restores agreement between the real body and declaration. This is a proposed acceptance process, not a universal algorithm.
Finally, obtain the actual business result. Format acceptance does not establish valid stock, authorised edits or completed processing. Keep those requirements explicit in the delivered task.
415 describes format refusal. MDN says the server refused the request because the message content format is unsupported. Avoid recording a specific business-data fault solely from that status.
The declaration is one possible cause. Content-Type can be missing or inappropriate for the endpoint. Ask for the actual accepted value rather than presume that application/json works everywhere.
Content-Encoding is another dimension. The reference names encoding as a possible format issue. Request the supported contract. A correct media type alone cannot establish that every encoded body is supported.
Content processing also matters. MDN includes refusal arising from processing the message content. Header inspection alone cannot rule out every body-format issue. Ask the provider to explain its actual evidence.
Strict charset handling is scoped. MDN gives UTF8 versus UTF-8 as a possible strict-server example. It does not prove the same restriction in a WEIMI service. Use the actual documented contract and controlled outcome.
Correction information is provider-defined. The Accept-Post header appears in the source example. Request the real response guidance without inventing a universal requirement or endpoint schema.
Relabelling is insufficient evidence. Ask whether the corrected declaration describes the actual body. This proposed review prevents a header-only demonstration from standing in for message compatibility.
Format and business validation differ. A request accepted at the format boundary may still need permission checks and business rules. Procurement should request those outcomes separately rather than mark the whole task finished.
These three genuine public listings are a retail-format shortlist. Confirm any message-submission service and its accepted formats separately in the quotation.
The listing describes camera recognition, five shelf levels with five baskets and a top screen or lightbox arrangement. Confirm final cooling and display configuration. This is packaged-product retail rather than juice preparation.
For an offered management integration, request its actual input contract. Recognition hardware establishes no JSON endpoint or encoding support.
Review the public listingThe page describes a 21.5-inch touchscreen, cooling and inventory management. Spiral, conveyor, direct-push and hanging options require order confirmation. Trial actual packages with the selected mechanism.
If inventory submission is included, distinguish message compatibility from valid business values. Inventory management does not establish a public submission format.
Review the public listingThe page shows a main display cabinet plus another visible spiral-stock area. Shared software, separate cooling and exact capacity are not established here. Confirm the ordered arrangement.
If a common integration is proposed, identify its real operation and message scope. Two selling areas do not establish one shared API contract.
Review the public listingChoose hardware through retail needs and message compatibility through the actual software contract.
| Candidate | Public format | Input question if offered | Boundary |
|---|---|---|---|
| AI fridge | Recognition and shelf access | What input contract applies? | No JSON API inferred |
| WM22 | Touchscreen and mechanism options | Which message format precedes business validation? | No submission format inferred |
| Dual station | Main cabinet plus stock area | What actual operation shares a contract? | No common API inferred |
Hypothetical internal allowance: assume 35 minutes to review the contract, 55 minutes for controlled rejection and correction evidence and 30 minutes to confirm business-result ownership. Total time is 120 minutes, or 2 hours. At an assumed US$41 per hour, internal labour costs US$82.
Assume a later 15-minute review costs US$10.25. The combined illustrative allowance is US$92.25. These are invented planning inputs, not WEIMI fees or measured test costs.
The example excludes implementation and specialist assessment. It predicts no saved downtime, sales gain or equipment payback. Obtain actual quotations and use real operating data for retail ROI.
Content-Type is missing: ask whether the endpoint requires a declaration and obtain its actual contract. Do not infer a default accepted type from another service.
The header describes a different body: review both together and demonstrate a correct harmless message. A new label alone is not evidence of content compatibility.
The encoding is unsupported: ask for the supported encoding and correction path. The code alone cannot diagnose that cause.
The format is accepted: obtain the separate business and final-result evidence. That boundary does not prove authorised or completed work.
Create a request-format acceptance record with the actual operation, documented media type, encoding, harmless body, rejection guidance, corrected result and responsible owner. This is a proposed purchasing document, not a built-in WEIMI feature.
Use provider-approved fixtures. Do not expose credentials or private stock records to discover formats. This article performs no live API submission or settings change.
Revisit compatibility after actual message construction or endpoint contracts change. Keep package recognition, dispensing and cooling commissioning separate from software format acceptance.
No. It describes unsupported message content format.
No. MDN also names Content-Encoding and content processing.
No. Obtain the actual provider contract.
The MDN example includes it. Confirm actual correction guidance rather than assume it is universal.
No. Review actual body compatibility and separate business outcomes.
No. The shortlist uses public equipment listings. Confirm offered services separately.
Procure the actual accepted request contract and controlled correction evidence. Distinguish message type, encoding and content from business validation. Avoid diagnosing an input-value problem from 415 alone.
Select hardware through public format evidence and actual product trials. This article verifies no supplier API, submits no live message and makes no measured compatibility or commercial claim.
