appsmithorg/appsmith · error · AppsmithPluginException

PE-ARG-5000

PE-ARG-5000

Error message

request type is missing

What it means

Thrown by AnthropicPlugin.trigger when request.getRequestType() is null or blank (AppsmithPluginError.PLUGIN_EXECUTE_ARGUMENT_ERROR, code PE-ARG-5000, message 'request type is missing'). The trigger flow needs a requestType to select the trigger method and cache the trigger response; an empty value cannot proceed.

Source

Thrown at app/server/appsmith-plugins/anthropicPlugin/src/main/java/com/external/plugins/AnthropicPlugin.java:261

                completionDTO.setModel(model);
                completionDTO.setCompletion(messageDTO.getFirstMessage());
                return completionDTO;
            } catch (IOException e) {
                throw new AppsmithPluginException(AppsmithPluginError.PLUGIN_JSON_PARSE_ERROR, new String(response));
            }
        }

        @Override
        public Mono<TriggerResultDTO> trigger(
                APIConnection connection, DatasourceConfiguration datasourceConfiguration, TriggerRequestDTO request) {
            log.debug(Thread.currentThread().getName() + ": trigger() called for Anthropic plugin.");
            final ApiKeyAuth apiKeyAuth = (ApiKeyAuth) datasourceConfiguration.getAuthentication();
            if (!StringUtils.hasText(apiKeyAuth.getValue())) {
                return Mono.error(new AppsmithPluginException(
                        AppsmithPluginError.PLUGIN_DATASOURCE_ARGUMENT_ERROR, EMPTY_API_KEY));
            }
            if (!StringUtils.hasText(request.getRequestType())) {
                throw new AppsmithPluginException(
                        AppsmithPluginError.PLUGIN_EXECUTE_ARGUMENT_ERROR, "request type is missing");
            }
            String requestType = request.getRequestType();

            AnthropicCommand anthropicCommand = AnthropicMethodStrategy.selectTriggerMethod(request, gson);
            HttpMethod httpMethod = anthropicCommand.getTriggerHTTPMethod();
            URI uri = anthropicCommand.createTriggerUri();

            TriggerResultDTO triggerResultDTO = triggerResponseCache.getIfPresent(requestType);
            if (triggerResultDTO != null) {
                return Mono.just(triggerResultDTO);
            }
            return RequestUtils.makeRequest(httpMethod, uri, apiKeyAuth, BodyInserters.empty())
                    .flatMap(responseEntity -> {
                        if (responseEntity.getStatusCode().is4xxClientError()) {
                            return Mono.error(
                                    new AppsmithPluginException(AppsmithPluginError.PLUGIN_AUTHENTICATION_ERROR));
                        }

View on GitHub (pinned to 8cd9021c24)

Solutions

1. Ensure the trigger call from the UI includes a valid requestType (e.g. the model-list trigger identifier the Anthropic plugin expects).
2. Update the Appsmith frontend/plugin to a matching version so the trigger payload is populated correctly.
3. If invoking the trigger programmatically, set request.setRequestType(<expected-value>) before calling.

Example fix

// before: trigger invoked without requestType
//   triggerRequest.setRequestType(null);
// after: set the expected request type
//   triggerRequest.setRequestType("MODELS"); // or whatever the plugin defines

// Ensure a requestType is set before invoking the trigger
if (!this.triggerRequest.requestType || !this.triggerRequest.requestType.trim()) {
  throw new Error('requestType is required for the Anthropic trigger');
}

function hasRequestType(r) { return !!r && typeof r.requestType === 'string' && r.requestType.trim().length > 0; }

When it happens

Trigger: A trigger request (e.g. loading model lists for a dropdown) arrives with requestType unset — the TriggerRequestDTO.getRequestType() returns null/empty, failing StringUtils.hasText. This typically stems from the frontend not setting the request type on the trigger call.

Common situations: A plugin/UI version mismatch where the frontend omits requestType; a custom trigger invocation that does not populate the field; a regression in the command editor that drops the request type parameter.

Related errors

• PE-JSN-4000
• PE-DSE-5000
• PE-DSE-5003
• PE-ARG-5000
• PE-DSE-5003

AI-assisted analysis of appsmithorg/appsmith@8cd9021c24 (2026-08-12). Data as JSON: /api/errors/eb41b0675ba16360. Report an issue: GitHub.