alexlopes · June 30, 2021 21:14 · Jun 30, 2021
diff --git a/terraform_tricks.md b/terraform_tricks.md
@@ -0,0 +1,26 @@
+### Returns a JSON result for External Data Sourcce
+
+
+
+```hcl
+
+data "external" "generate_secret" {
+  program = ["bash", "${path.module}/get-name.sh"]
+
+  query = {
+    my_name      = "John"
+    my_middle_name = "Doe"
+  }
+}
+
+# get-name.sh
+function output_json(){
+  # the stdin for external datasource is a JSON object
+  eval "$(jq -r '@sh "NAME=\(.my_name) MIDDLE_NAME=\(.my_middle_name)"')"
+   # some logic
+  jq -n \
+    --arg name "${NAME}" \
+    --arg mid_name "${MIDDLE_NAME}" \
+    '{"name":$name, "middle_name":$mid_name}' 
+}
+```